Method and apparatus for flotation separation
US5702612A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 20, 1995 |
| Grant date | Dec 30, 1997 |
| Priority date | — |
| Expiry date | Jul 20, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D1/24
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A flotation method and apparatus for separating a selected constituent from an effluent of an industrial process is provided. The apparatus includes a conditioning tank and a flotation cell. The conditioning tank allows mixing a flotation reagent with an effluent and includes a mechanism for also dissolving gas in the effluent within the conditioning tank. The flotation cell includes a dissolved gas flotation chamber having an overflow for recovering the selected constituent and a tailings drain. In addition, the flotation cell also includes an added gas flotation chamber having a sparger for injecting gas into the effluent, an overflow for recovering the selected constituent and a tailings drain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.